Physical Sciences and Mathematics Commons^™

Avian Repellents: Options, Modes Of Action, And Economic Considerations, J. Russell Mason, Larry Clark

National Wildlife Research Center Repellents Conference 1995

The present manuscript considers visual, auditory, tactile, chemosensory, and physiologic repellents currently available for use in the United States. Discussion of tactile, chemosensory, and physiologic repellents is emphasized for three reasons. First, these products are preferred by users. Second, application of these substances is regulated by state and federal agencies. Third, only four active ingredients are legally available at the present time. This lack reflects difficulties in obtaining regulatory approval and limited market size.

Predator Odors As Repellents To Brushtail Possums And Rabbits, David R. Morgan, Anthony D. Woolhouse

National Wildlife Research Center Repellents Conference 1995

Repellents are being developed as an alternative to the use of poisons, traps, or firearms for controlling damage to forest and farm plantings by the introduced Australian brushtail possum (Trichosurus vulpecula) and European rabbit (Oryctolagus cuniculus). Such repellents need to protect seedlings from irreversible damage for at least 6 months after application. Seven synthetic predator odor compounds were compared with "Treepel", a moderately effective commercial repellent, by assessing relative browse on treated Pinus radiata seedlings in pen tests. Predator odors were repellent to both animals. Generally they were more repellent to possums than to rabbits, but the predator odor-based TOM …

Recent Studies On Flavor Aversion Learning In Wildlife Damage Management, Russell F. Reidinger Jr.

National Wildlife Research Center Repellents Conference 1995

Flavor aversion learning (FAL) occurs experimentally when a mammal is presented with a distinctive-flavored food followed by a postingestional illness. Birds may learn aversions to visual cues. Aversions follow a single pairing and may be robust. During the past decade, at least four directions were followed in evaluating FAL for managing wildlife damage: compounds already registered for use on crops such as herbicides, insecticides, or fungicides were tested for their abilities to also repel birds and small mammals from crops; naturally occurring compounds such as sucrose or charcoal were similarly evaluated; eggs were treated with different compounds in attempts to …

Bird Deterrent Research And Development: Marine Oil Spills, Timothy J. Reilly

National Wildlife Research Center Repellents Conference 1995

A wide range of techniques are available for deterring birds from coastal oil spills, including (but not limited to) pyrotechnics, aircraft, boats, flags, reflecting devices, and artificial sounds. Many of these deterrent devices have had little field testing to determine optimal deterrent strategies. The Marine Spill Response Corporation (MSRC) developed a research and development (R&D) plan which has identified critical research which would need to be conducted to determine these optimal strategies. This program was initiated through the generation of a report which described the state-of-the-art of deterring birds from marine oil spills. Following this report, MSRC hosted a workshop …

An Integrated Strategy To Decrease Eared Dove Damage In Sunflower Crops, Ethel N. Rodriguez, Richard L. Bruggers, Roger W. Bullard, Robert Cook

National Wildlife Research Center Repellents Conference 1995

Eared doves (Zenaida auriculata) damage mature sunflowers in Uruguay. Although repellents might be useful as a control method, durability and expense have discouraged their use. In the present report, we describe laboratory, aviary, and field research designed to evaluate methiocarb and calcium carbonate as durable, economical repellents. Calcium carbonate (CaCO₃) was as effective as CaCO₃ /methiocarb in combination in deterring consumption of sunflowers. Moreover, treating field borders with CaCO₃ or the CaCO₃ /methiocarb combination was as effective as treating the entire field for at least 12 days. This period is sufficiently long to …

Repellency Of Predator Urine To Woodchucks And Meadow Voles, Robert K. Swihart, Mary Jane I. Mattina, Joseph J. Pignatello

National Wildlife Research Center Repellents Conference 1995

Woodchucks (Marmota monax) and meadow voles (Microtus pennsylvanicus) can be serious pests in orchards where they damage young fruit trees by gnawing on main stems. Previous work indicated that topical application of bobcat (Lynx rufus) urine to apple trees could reduce woodchuck damage by an average of 98%. Here, we report on field trials designed to determine whether various fractions of bobcat urine could achieve comparable reductions in gnawing activity. Trials with smooth sumac (Rhus glabra) resulted in an average reduction in gnawing over a 4-week period, relative to controls, of 86% …

Table Of Contents

National Wildlife Research Center Repellents Conference 1995

Repellents in Wildlife Management Symposium
Table of Contents

Repellency Of Mongoose Feces And Urine To Rats (Rattus Spp.), Mark E. Tobin, Ann E. Koehler, Robert T. Sugihara, Michael E. Burwash

National Wildlife Research Center Repellents Conference 1995

Chemical repellents derived from predators might offer more effective and longer lasting protection from vertebrate depredations than current damage control measures. Thus, we conducted laboratory and field studies to evaluate the repellency of mongoose feces and urine to black rats (Rattus rattus) and Polynesian rats (R. exulans ) . We exposed captive wild rats to water, butyric acid, mongoose (Herpestes auropunctatus) feces, or mongoose urine in a 150- x 60- x 120-cm partitioned arena and recorded their behavior with a video camera. None of the test substances had any apparent effect (P> 0.05) on behavior …

Repellent Trials To Reduce Reforestation Damage By Pocket Gophers, Deer, And Elk, Gary W. Witmer, Rodney D. Sayler, Michael J. Pipas

National Wildlife Research Center Repellents Conference 1995

We tested selected, potential repellents in pen and field trials to determine their ability to reduce consumption of palatable foods by pocket gophers (Thomomys talpoides), deer (Odocoileus spp.), and elk (Cervus elaphus). Only sulfur-based compounds (predator urines and Deer Away®) deterred feeding by captive gophers. Chemically hot, bitter, and noxious compounds and plants did not deter gopher feeding. Rapid reinvasion of available habitat by pocket gophers in a field trial occurred despite the presence of encapsulated, sulfur-based semiochemicals of stoat (Mustela erminea) on trial plots. Coyote urine and Deer Away deterred browsing by …

Power Systems Marginal Cost Curve And Its Applications, Shaojun Wang, S. M. Shahidehpour, Nian-De Xiang

Kno.e.sis Publications

This paper presents a forward recursive procedure to calculate the expected system marginal cost curve (EMC). The EMC formulation allows for multi-state and multi-block dispatch of generating units and is used to determine the optimal energy of pumped-storage units. A new approach is developed to compute the first and second derivatives of the expected generation energy of a thermal unit with respect to the capacity of all thermal units in the system. The salient feature of the proposed approach is that it applies to hydro-thermal systems with multiple limited-energy hydro units.

Ionization-Excitation Of Helium By Fast Charged Particles, L. Nagy, J. Wang, Jack C. Straton, James H. Mcguire

Physics Faculty Publications and Presentations

Probabilities and cross sections for ionization plus excitation in helium produced by fast heavy-particle impact have been evaluated. In these calculations, contributions from shake-off, time ordering, and independent interactions of the frozen-target electrons with the projectile are included. A comparison is made to recent experimental observations for the ratio of excitation-ionization to single-ionization total cross sections. A comparison is also made to calculations of excitation-ionization by fast electron impact.

Origins And Effects Of Thermal Processes On Near-Field Optical Probes, Andres H. La Rosa, B. I. Yakobson, H. D. Hallen

Physics Faculty Publications and Presentations

An aluminum-coated tapered fiber probe, as used in near-field scanning optical microscopy (NSOM), is heated by the light coupled into it. This can destroy the probe or may modify the sample, which can be problematic or used as a tool. To study these thermal effects, we couple modulated visible light of various power through probes. Simultaneously coupled infrared light senses the thermal effects. We report their magnitude, their spatial and temporal scales, and real-time probe damage observations.Amodel describes the experimental data, the mechanisms for induced IR variation, and their relative importance.

Guest Editorial: Special Section On Photorefractive Nonlinear Optics, Partha P. Banerjee

Electrical and Computer Engineering Faculty Publications

Hand in hand with experimental work in photorefractives, there is a lot of activity in modeling photorefractive materials and experimental observations in the open literature. This special section contains a paper by Banerjee and Jarem, who use a rigorous coupled wave theory to analyze two- and multiple-wave mixing photorefractive barium titanate, modeled through the Kukhtarev equations.

Broadband Dynamic, Holographically Self-Recorded, And Static Hexagonal Scattering Patterns In Photorefractive Knbo3:Fe, Nickolai Kukhtarev, Tatiana V. Kukhtareva, John Caulfield, Partha P. Banerjee, Hsueh-Ling Yu, Lambertus Hesselink

Electrical and Computer Engineering Faculty Publications

We have observed and explained three types of hexagon pattern formation in photo refractive crystal KNb03:Fe. These are:

• Dynamic (laser induced)
• Semipermanent (holographically stored)
• Permanent (induced by a static domain grid) over a wide wavelength range

An Integrated Framework For Learning And Reasoning, Christophe G. Giraud-Carrier, Tony R. Martinez

Faculty Publications

Learning and reasoning are both aspects of what is considered to be intelligence. Their studies within AI have been separated historically, learning being the topic of machine learning and neural networks, and reasoning falling under classical (or symbolic) AI. However, learning and reasoning are in many ways interdependent. This paper discusses the nature of some of these interdependencies and proposes a general framework called FLARE, that combines inductive learning using prior knowledge together with reasoning in a propositional setting. Several examples that test the framework are presented, including classical induction, many important reasoning protocols and two simple expert systems.

A New Photopolymer Recording Material For Holographic Applications: Photochemical And Holographic Studies Towards An Optimized System, Suzanne Martin

Doctoral

Photopolymer materials are a practical alternative to high resolution silver halide photographic emulsions for the recording of holograms and high spatial frequency holographic gratings. The new holographic recording material reported in this thesis consists of a green sensitive dye (erythrosine B), an electron donor (triethanolamine), and a monomer mixture (acrylamide and methylene bisacrylamide) in a polyvinyl alcohol binder. ON illumination with light of the appropriate wavelength the dye absorbs a photon and the excited triplet state of the dye reacts with the electron donor to produce free radicals. These free radicals may then initiate local polymerization of the monomer. The …

On Single Equational-Axiom Systems For Abelian Groups, Sonsauhray C. Price-Sampson

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

The Use Of Analogies In An Industrial Environment To Facilitate Status Changes For Radiation Science Concepts, Charles Thomas Lohrke

Dissertations

The focus of this study was the effect of two analogies on the status of industrial technical center employees for three radiation science concept areas. The analogies used were of melting ice and falling tacks. The three radiation concept areas examined were radioactive material decay, radioactive material half-life, and radioactive material activity.

Forty-four adults participated in the study. Thirty-five of these participants took pre- and post-lesson multiple-choice tests to determine the effect that the analogies had on their intelligibility of the three radiation science concept areas. Nine participants also took pre- and post-lesson clinical interviews to assess their intelligibility, plausibility, …

John Muir Newsletter, Fall 1995, John Muir Center For Regional Studies

Muir Center Newsletters (1981-2015)

Muir Newsletter fall 1995 university of the pacific volume 5, number 4 JOHN MUIR AND THE VAN DYKE RANCH: INTIMACY AND DESIRE IN HIS FINAL YEARS By Peter Wild (Editor's note: Well-known author, poet, biographer and nature writer, Peter Wild is Professor of Modern Language at the University of Arizona in Tucson. The following paper is an outgrowth of his recent research on the Muir family in the Southwest. Part One was published in the previous issue.) PARTTWO The Muirs owed much of Helen's well-being to the ranchers, Theodore Strong Van Dyke and his son Dix. The Van Dykes were …

Performance Indices For On-Ice Hockey Statistics, William (Bill) H. Williams

Publications and Research

No abstract provided.

Structure And Interaction Energies Of Kr Atoms Adsorbed On Graphitic Amorphous Carbon, Sang -Joon Lee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The physisorption of Kr on graphitic amorphous carbon (g-C) has been investigated using a statistical approach. The interaction energy calculation process (i) established a structural model of g-C and (ii) determined the adsorbate-adsorbate and the adsorbate-substrate interaction potentials on g-C.

The structural model of g-C was divided into three regions. For the interaction potential between a Kr atom and a carbon atom the short and medium range order of g-C was described with a discrete medium model based on three ring clusters using ring statistics from Beeman's continuous random network C1120 model of g-C. For the intermediate distance region, Beeman's …

Laser Oriented K-36 For Time-Reversal Symmetry Measurements, A. R. Young, W. S. Anderson, F. P. Calaprice, G. D. Cates, Gordon L. Jones, D. A. Krieger, R. B. Vogelaar

Articles

We have produced very large nuclear alignments in radioactive K-36 (half-life 0.34 sec) through laser optical pumping techniques. The K-36 was created through (p,n) reactions using a 50 nA, 22 MeV proton beam, and a 3.3 atmosphere Ar-36 target. Measurements were made with the target cell at room temperature, when direct optical pumping produces nuclear orientation in the K-36, and at elevated temperatures 160 degrees C and 180 degrees C) where the K-36 is oriented through a combination of direct optical pumping and spin exchange. The fraction of the maximal nuclear alignment for the 180 degrees C data was determined …

Preprocessing Of Microcirculatory Images., Mohamed S. Mansour

Electronic Theses and Dissertations

This thesis project consists of the development of a computerized image processing system to preprocess microvascular images of the mouse Latisimus Dorsi Muscle (LDM). This research has been conducted in association with the Division of Plastic and Reconstructive Surgery at the University of Louisville. The input to the system is a set of 35 or more overlapping microscopic fields or sub_images containing segments of the LDM microcirculation, the output is an adjacent single montage encompassing the entire LDM microvasculature. The developed system presents practical solutions to the problems of image registration, overlap resolution, and image segmentation, in addition, the results …

Measurement Of The D*± Cross Section In Two Photon Collisions At Lep, D. Buskulic, M. Thulasidas

Research Collection School Of Computing and Information Systems

The inclusive production of D∗± mesons in photon-photon collisions has been measured by the Aleph experiment at LEP with a beam energy of 45 GeV. The D∗+ are detected in their decay to D0π+ with the D0 observed in three separate decay modes: (1) K−π+, (2) K−π+π0 and (3) K−π+π−π+, and analagously for the D∗− modes. A total of 33 events was observed from an integrated luminosity of 73 pb−1 which corresponds to a cross section for Σ(e+e−→ e+e−D∗±X) of 155 ± 33 ± 21 pb. This result is compatible with both the direct production γγ → cc in the …

Limit On B0s Oscillation Using A Jet Charge Method, D. Buskulic, M. Thulasidas

Research Collection School Of Computing and Information Systems

A lower limit is set on the Bs0 meson oscillation parameter Δms using data collected from 1991 to 1994 by the ALEPH detector. Events with a high transverse momentum lepton and a reconstructed secondary vertex are used. The high transverse momentum leptons are produced mainly by b hadron decays, and the sign of the lepton indicates the particle/antiparticle final state in decays of neutral B mesons. The initial state is determined by a jet charge technique using both sides of the event. A maximum likelihood method is used to set a lower limit of Δms. The 95% confidence level lower …

Managing Household Hazardous Waste Or Making A Choice To Do Something Without Going Broke, Maine State Planning Office

Maine Collection

Managing Household Hazardous Waste Or Making a Choice to Do Something Without Going Broke

State of Maine, State Planning Office, Augusta, Maine

Androscoggin Valley Council of Governments, Auburn, Maine

August 1995.

Contents: Acknowledgements / Abbreviations / Introduction / I. History of Household Hazardous Waste in Maine / II. How-To Guide for Towns / Appendixes / Bibliography

Municipal Recycling Programs In Maine, State Planning Office

Maine Collection

Municipal Recycling Programs in Maine

State Planning Office, Augusta, Maine

August 1995

Contents: Municipal Recycling Programs in Maine / Municipal Officials / Materials / Regional Associations / Materials / 1994 Recycling Rate / Regional Associations Index

Processing Results Of Western Australian Wool, John Stanton A/Prof, Lindy Coss, Peter Metcalf

Resource management technical reports

Despite a perception by some that Western Australian wool 'processes poorly', this study found that the consignments processed:

1. into longer tops suited for worsted weaving

2. into longer than predicted tops

3. with the same consistency as other Australian consignments

Comparison Of Time-Domain Reflectometry Performance Factors For Several Dielectric Geometries: Theory And Experiments, S. V. Maheshwarla, R. Venkatasubramanian, Robert F. Boehm

Electrical & Computer Engineering Faculty Research

We propose three nontraditional dielectric geometries and present an experimental and theoretical analysis and comparison of time domain reflectometry (TDR) performances for them. The traditional geometry (the probes inserted in material of essentially infinite extent) is compared to three nontraditional geometries where the probes are affixed outside of a core sample, inside of a bore, or flat on the surface of a semi-infinite solid. Our derivation relates the velocity of electromagnetic wave propagation to the complex permittivities and permeabilities of the media and the geometry for the three nontraditional configurations. Experimental results for air, styrofoam, dry sand, wet sand of …

A Comparison Of Methods To Allocate Tasks On A Multiprocessor System, Kelly Cousineau

Masters Theses

The task scheduling problem is defined as a sequential algorithm, with individual tasks, t₁, t₂, t₃… having associated execution times to be ported to a multiprocessor system. To determine the fastest parallel implementation is known to be an NP-complete problem, therefore heuristic techniques are employed to arrive at the best solution.

Some of the traditional methods used to solve this problem, are the list scheduling algorithm and the simulated annealing algorithm. However, evolutionary techniques are now also a consideration with the increased computation power available.

Evolutionary techniques, based on the popular theory of evolution, …